add portability variable for gnu sort and add coreutils to requirements

Makefile

@@ -15,6 +15,7 @@ LIBTOOL    := $(shell glibtool --help >/dev/null 2>&1 && echo g)libtool
 LIBTOOLIZE := $(shell glibtoolize --help >/dev/null 2>&1 && echo g)libtoolize
 PATCH      := $(shell gpatch --help >/dev/null 2>&1 && echo g)patch
 SED        := $(shell gsed --help >/dev/null 2>&1 && echo g)sed
+SORT       := $(shell gsort --help >/dev/null 2>&1 && echo g)sort
 WGET       := wget --no-check-certificate \
                    --user-agent=$(shell wget --version | \
                    $(SED) -n 's,GNU \(Wget\) \([0-9.]*\).*,\1/\2,p')

index.html

@@ -727,8 +727,8 @@ aptitude -t squeeze-backports install cmake yasm</pre>
 
     <!-- http://www.freshports.org/ -->
     <pre>pkg_add -r automake111 autoconf268 bash bison cmake \
-           flex gettext git gmake gsed intltool libffi libtool \
+           coreutils flex gettext git gmake gsed intltool libffi \
-           openssl patch perl p5-XML-Parser pkg-config \
+           libtool openssl patch perl p5-XML-Parser pkg-config \
            scons unzip wget yasm</pre>
 
     <p>
@@ -783,8 +783,8 @@ aptitude -t squeeze-backports install cmake yasm</pre>
     then run:
     </p>
     <!-- http://www.macports.org/ports.php -->
-    <pre>sudo port install autoconf automake bison cmake flex \
+    <pre>sudo port install autoconf automake bison cmake coreutils \
-                  gettext git-core glib2 gsed intltool libffi \
+                  flex gettext git-core glib2 gsed intltool libffi \
                   libtool openssl p5-xml-parser pkgconfig scons \
                   wget xz yasm</pre>
     <p>Use the llvm based gcc: